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RE: IR Extender... Revisited!


  • To: <ukha_d@xxxxxxx>
  • Subject: RE: IR Extender... Revisited!
  • From: "James Hoye" <james.hoye@xxxxxxx>
  • Date: Thu, 16 Aug 2001 15:25:52 +0100
  • Delivered-to: rich@xxxxxxx
  • Delivered-to: mailing list ukha_d@xxxxxxx
  • Mailing-list: list ukha_d@xxxxxxx; contact ukha_d-owner@xxxxxxx
  • Reply-to: ukha_d@xxxxxxx

> "Normal" handsets use a system of modulating (switching on
and off ) a
> carrier signal . The normal frequency of the carrier being in the
range of
> 35kHz to 60kHz..
>
> first to also provide an integrated  cable modem within the box.) The
> handset data is transmitted as discrete pulses of IR - it is not
carrier
> based . The pulse rate is approximately 115kHz . The handsets have

Sounds relatively easy, just look 115,000 times a second for an IR
source....  Don't know whether the RS485? bus could handle that though...
Of course, I could be talking complete cr*p!  I bet Keith knows though ;)

James H


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